Chainer, Dementia Master + Dimir House Guard + Gray Merchant of Asphodel + K'rrik, Son of Yawgmoth

B identity

Commander legal

The 4 combo pieces

What must be in place

Your life total is at least ten.
Your devotion to black is at least ten or you have at least two opponents.

How to execute it

  1. Activate Dimir House Guard by sacrificing Gray Merchant, regenerating it the next time it would die this turn.
  2. Activate Chainer by paying nine life, returning Gray Merchant from your graveyard to the battlefield as a Nightmare in addition to its other creature types.
  3. Gray Merchant enters the battlefield, causing each opponent to lose life equal to your devotion to black and causing you to gain life equal to the amount of life lost this way.
  4. Repeat.

What the combo produces